Below, you will find information on devices, software, and configurations that are incompatible with Cloudflare WARP.
Windows Subsystem for Linux 2
The WARP client does not run on Windows Subsystem for Linux 2 (WSL2). To use WARP, fall back to Windows Subsystem for Linux 1 (WSL1).
Multi-user support on Windows
The WARP client does not support multiple users on a single Windows device. WARP uses hard-coded global paths to store settings and keys and does not save information on a per-user basis. Therefore, after one user logs into WARP, their settings will apply to all traffic from the device.
4G/5G embedded modules
Because of how the WARP client instantiates the local DNS Proxy, it is incompatible with 4G/5G cellular adaptors which have IPv6 enabled. To run WARP on these devices, you will need to disable IPv6 on the system.
Comcast DNS servers
Comcast DNS traffic to
22.214.171.124 cannot be proxied through WARP. This is because Comcast rejects DNS traffic that is not sent directly from the user’s device.
To work around the issue, you can either:
- Create a that excludes
- Configure your device or router to use a public DNS server such as .